IZ68224: tcpConnTable on Linux ppc64 is missing connections to IPv6 addre sses that are IPv4-mapped

IBM Tivoli 4.0.0-TIV-SSM-FP0010
IBM Tivoli 4.0.0-TIV-SSM-FP0011
IBM Netcool System Service Monitor SSM 4.0 Fix Pack 12 README 4.0.0-TIV-SSM-FP0012
IBM Netcool System Service Monitor SSM 4.0 Fix Pack 13 README 4.0.0-TIV-SSM-FP0013
IBM Netcool System Service Monitor SSM 4.0 Fix Pack 14 README 4.0.0-TIV-SSM-FP0014
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 1 README 4.0.0.14-TIV-SSM-IF0001
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 2 README 4.0.0.14-TIV-SSM-IF0002
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 3 README 4.0.0.14-TIV-SSM-IF0003
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 4 README 4.0.0.14-TIV-SSM-IF0004
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 5 README 4.0.0.14-TIV-SSM-IF0005
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 6 README 4.0.0.14-TIV-SSM-IF0006
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 7 README 4.0.0.14-TIV-SSM-IF0007
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 8 README 4.0.0.14-TIV-SSM-IF0008
IBM Netcool System Service Monitor SSM 4.0 Interim Fix 1 README 4.0.0.15-TIV-SSM-IF0001

APAR status

• Closed as program error.

Error description

• On ppc64 Linux, "netstat -n | grep EST" shows more connections
  than the SSM does in tcpConnTable. The SSM seems to be missing
  the connections to/from IPv6 addresses that are mapped from IPv4
  addresses. netstat shows such addresses as ::ffff:1.2.3.4:5678
  so the SSM should be reporting "1.2.3.4:5678"
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of MIB2 on linux-ppc64
  ****************************************************************
  PROBLEM DESCRIPTION:
  Agent can not list all established TCP connection on Linux-ppc.
  ****************************************************************
  RECOMMENDATION:
  Upgrade to Fix Pack 9 for SSM 4.0.
  
  ****************************************************************
  

Problem conclusion

• /proc/net/tcp6 was being parsed partially under the assumption
  of little-endian byte ordering. While that works on x86, it
  produces incorrect results on ppc64 (big-endian).
  
  The fix for this APAR is contained in the following maintenance
  packages:
  | fix pack | 4.0.0-TIV-SSM-FP0009
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  NETCOOL SYS SVC

• Fixed component ID

  5724P4300

Applicable component levels

• R400 PSN

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